Safety-switch for railroads



UNTTED STATES PATENT FFTOE.

PHILOS B. TYLER, OF NE'W ORLEANS, LOUISIANA.

SAFETY-SWITCH FOR RAILROADS.

Specification of Letters Patent No. 4,511, dated May 9, 1846.

T0 all who/m, it may concern Be it known that I, PrriLos B. TYLER, of New Orleans, in the State of Louisiana, have invented a new and useful mprovement in Railroad-Switches; and do hereby declare that the following is a Jfull, clear, and exact description, in which reference is had to the accompanying drawing that makes a part thereof, in which- Figure 1, is a plan of the road with the turn out; Fig. 2, an isometrical view of the switch.

The nature of my invention consists in constructing the movable part of the switch with an additional branch rail, between which and the true switch there is an inclined plane and a guard onthe outside, so that whenv the switch is set wrong, the cars can not run on? the track.

The track as shown in Fig. 1, is constructed in any of the ordinary ways; it has a long movable switch (a, a,) connected with it at the turn out (t) at the movable end of this switch, there is attached a short rail to the inside of each of the main rails of the switch, which are oined to, and are parallel with said rails; these short rails are gradually tapered ott" as they recede from the removable end, as shown in the Outside of the main-rails (a) there is a branch (CZ) to the main rail, which is formed by a gradual enlargement oit the rail near the movable end till they are separated, hav ing an inclined plane (f) between them which runs off gradually from the surface of the rails where they separate to a depth suflicient to allow the flanch of the car and the switch was set for the side track by accident, the tlanch of the right hand wheel, would be made to run up vthe inclined plane (f) which would cause the cars to incline to the left and the iianch would roll over the top of the main rail (a) and down on the inside thereof, bringing the tread of the wheel properly on to the track as shown by the red line which indicates the course of the anch. lf the relative position o the switch and cars were changed, that is, if the switch was set to the main track and the cars were running on to it from the side track, the effect would be the same.

TWhat I claim as my invention, and desire to secure by Letters Patent, is

The construction of the switch as herein described, that is to say, the addition of the branch (Z,), to the main rail (6a) with the inclined plane (f,) for the tlanch of the wheel to run up on between them, and in combination therewith, the short rails (0,) and guard (6,), arranged substantially in the manner, and for the purpose above set forth.

PHLOS B. TYLER.

Witnesses:

JOHN BROOKS, WALTER H, PETERS. 

